CN218117919U

CN218117919U - Forged steel structure type piston

Info

Publication number: CN218117919U
Application number: CN202222727349.8U
Authority: CN
Inventors: 宋燕平; 花恒武; 王战利
Original assignee: Jiaozuo Max Power Technology Co ltd
Current assignee: Jiaozuo Max Power Technology Co ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2022-12-23
Anticipated expiration: 2032-10-17

Abstract

The utility model belongs to the technical field of pistons, in particular to a forged steel structure type piston, which comprises a shell, wherein the top of the shell is provided with a thread groove, the inner thread of the thread groove is connected with a thread block, the top of the thread block is provided with a piston assembly, two sides of the shell are provided with preformed grooves, two sides of the shell are provided with through holes, the through holes are positioned in the preformed grooves, a pin shaft is connected between the two through holes through common threads, one side of the pin shaft is connected with a nut through threads, the bottom of the shell is provided with a piston rod, and the top end of the piston rod penetrates through the bottom of the shell and extends to the inner part of the shell; make through piston assembly be difficult for droing between rubber circle and the fixed block, increased the steadiness between rubber circle and the fixed block, the effect through reinforcing sleeve and reinforcing plate can increase the intensity of casing to can strengthen the intensity of junction between round pin axle and the casing, thereby can avoid the damage of round pin axle to the casing.

Description

Forged steel structure type piston

Technical Field

The utility model relates to a piston technical field specifically is a forged steel structural formula piston.

Background

The piston is a part which does reciprocating motion in the cylinder body of the automobile engine, the basic structure of the piston can be divided into a top part, a head part and a skirt part, the top part of the piston is the main part forming a combustion chamber, the shape of the piston is related to the selected combustion chamber form, the gasoline engine mostly adopts a flat-top piston, the piston has the advantages of small heat absorption area, the top part of the piston of the diesel engine is often provided with various pits, the specific shape, position and size of the pit are adapted to the mixed gas forming and combustion requirements of the diesel engine, the head part and the skirt part of the piston are actually processed with cooling oil cavities respectively by a steel structure piston, and then the head part and the skirt part are formed into a whole by friction welding.

In the existing forged steel structure type piston, the strength of the joint between the pin shaft and the piston is not high, so that the piston is easily damaged by being extruded by the pin shaft, and a piston sleeve is easily dropped when the piston moves; accordingly, a forged steel structural piston has been proposed to address the above problems.

SUMMERY OF THE UTILITY MODEL

In order to compensate prior art's not enough, it is not high to have solved the junction intensity between round pin axle and the piston to the piston is easily damaged by the extrusion of round pin axle, and the problem that the piston bush easily drops in the motion, the utility model provides a forged steel structural formula piston.

The utility model provides a technical scheme that its technical problem adopted is: a forged steel structural formula piston, which comprises a housin, the thread groove has been seted up at the top of casing, the inside threaded connection of thread groove has the thread piece, the top of thread piece is provided with piston assembly, the preformed groove has been seted up to the both sides of casing, the through-hole is located the inside of preformed groove, two common threaded connection has the round pin axle between the through-hole, one side threaded connection of round pin axle has the nut, the bottom of casing is provided with the piston rod, the bottom of casing is passed on the top of piston rod and the inside that extends to the casing, the pinhole has been seted up on the surface of piston rod, the round pin axle is pegged graft in the inside of pinhole.

Preferably, the inside both sides fixedly connected with reinforcement cover of casing, just the reinforcement cover is located one side of through-hole, the inner wall fixedly connected with reinforcing plate of casing, just the reinforcing plate. The quantity set up to be a plurality of, pass the bottom of casing with the piston rod, then pass through-hole and pinhole with the pinhole, later fix the round pin axle through the nut, thereby make and be connected between round pin axle and the casing, be connected between messenger's screw block and the casing through being connected between screw block and the screw hole, thereby can be connected between piston assembly on the screw block and the casing, can increase the intensity of casing through the setting of reinforcement sleeve and reinforcing plate, and can strengthen the intensity of junction between round pin axle and the casing, thereby can avoid the round pin axle to the damage of casing.

Preferably, the oil storage chamber has been seted up to the inside of screw thread piece, the inlet port has been seted up to one side of screw thread piece, the oil outlet has been seted up to the opposite side of screw thread piece, can store lubricating oil through the oil storage chamber to lubricating oil enters into the oil storage chamber through the inlet port, then discharges lubricating oil through the oil outlet, and discharged lubricating oil can lubricate between piston and the piston cylinder.

Preferably, the piston assembly comprises a fixed block, the bottom of the fixed block is fixedly connected to the top of the thread block, annular grooves are formed in the surface of the fixed block, the number of the annular grooves is two, and piston bodies are arranged in the two annular grooves.

Preferably, annular clamping grooves are formed in the two annular grooves, limiting blocks are fixedly connected to the inner portions of the two annular grooves, and the limiting blocks are arranged in a plurality.

Preferably, the piston body comprises a rubber ring, the rubber ring is sleeved inside the annular groove, an annular clamping block is fixedly connected to the inner surface of the rubber ring, the annular clamping block is clamped inside the annular clamping groove, an anti-slip mat is fixedly connected to the inner surface of the annular clamping block, anti-slip strips are fixedly connected to the inner surface of the anti-slip mat, sealing strips are fixedly connected to the outer surface of the rubber ring, the piston body can be fixed on the surface of the fixing block by sleeving the rubber ring inside the annular groove, the rubber ring and the fixing block are not prone to falling off by clamping the annular clamping groove and the annular clamping block, the stability between the rubber ring and the fixing block is improved, the annular clamping block can be tightly abutted by the limiting blocks, the annular clamping block is not prone to being separated from the annular clamping groove, rotation between the rubber ring and the annular groove can be prevented by the arrangement of the anti-slip mat and the anti-slip strips, gaps between the rubber ring and the inner wall of the piston cylinder can be reduced by the arrangement of the sealing strips, and the using effect of the piston is better.

The utility model discloses an useful part lies in:

1. the utility model discloses a piston assembly, through the inside with rubber snare at the annular groove, and then can fix the surface at the fixed block with the piston body, through the joint between with annular groove and annular fixture block, make and be difficult for droing between rubber circle and the fixed block, the steadiness between rubber circle and the fixed block has been increased, can support tight annular fixture block through the setting of restriction piece, thereby make annular fixture block be difficult for breaking away from in the annular groove, setting through slipmat and antislip strip, can prevent to produce between rubber circle and the annular groove and rotate, can reduce the gap between rubber circle and the piston cylinder inner wall through the setting of sealing strip, thereby make the result of use of piston better.

2. The utility model discloses an effect of reinforcement sleeve and reinforcing plate makes to be connected between screw thread piece and the casing through being connected between screw thread piece and the screw hole to can be connected between piston assembly and the casing on the screw thread piece, can increase the intensity of casing through setting up of reinforcement sleeve and reinforcing plate, and can strengthen the intensity of junction between round pin axle and the casing, thereby can avoid the damage of round pin axle to the casing.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the whole disassembled structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the housing of the present invention;

FIG. 4 is a schematic view of the piston assembly of the present invention;

FIG. 5 is a schematic view of a partial structure of the piston assembly of the present invention;

fig. 6 is a schematic view of the piston body structure of the present invention.

In the figure: 1. a housing; 2. a thread groove; 3. a thread block; 4. a piston assembly; 41. a fixed block; 42. an annular groove; 43. a piston body; 431. a rubber ring; 432. an annular fixture block; 433. a non-slip mat; 434. anti-slip strips; 435. a sealing strip; 44. an annular neck; 45. a limiting block; 5. reserving a groove; 6. a through hole; 7. a pin shaft; 8. a nut; 9. a piston rod; 10. a pin hole; 11. a reinforcing sleeve; 12. a reinforcing plate; 13. an oil storage chamber; 14. an oil inlet hole; 15. an oil outlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Please refer to fig. 1-6, a forged steel piston, which comprises a housing 1, a thread groove 2 is formed at the top of the housing 1, a thread block 3 is connected to the inner thread of the thread groove 2, a piston assembly 4 is arranged at the top of the thread block 3, two sides of the housing 1 are provided with a preformed groove 5, two sides of the housing 1 are provided with through holes 6, the through holes 6 are located inside the preformed groove 5, a pin shaft 7 is connected to the two through holes 6 through a common thread, one side of the pin shaft 7 is connected to a nut 8 through a thread, the bottom of the housing 1 is provided with a piston rod 9, the top end of the piston rod 9 penetrates through the bottom of the housing 1 and extends to the inside of the housing 1, the surface of the piston rod 9 is arranged in a pin hole 10, and the pin shaft 7 is inserted into the pin hole 10.

Wherein, the inside both sides fixedly connected with reinforcement sleeve 11 of casing 1, and reinforcement sleeve 11 is located one side of through-hole 6, and the inner wall fixedly connected with reinforcing plate 12 of casing 1, and reinforcing plate 12. The number of the screw rods is set to be a plurality of, the piston rods 9 penetrate through the bottom of the shell 1, then the pin holes 10 penetrate through the through holes 6 and the pin holes 10, then the pin shafts 7 are fixed through the nuts 8, so that the pin shafts 7 are connected with the shell 1, the screw blocks 3 are connected with the shell 1 through the connection between the screw blocks 3 and the threaded holes, so that the piston assemblies 4 on the screw blocks 3 can be connected with the shell 1, the strength of the shell 1 can be increased through the arrangement of the reinforcing sleeve 11 and the reinforcing plate 12, the strength of the joints between the pin shafts 7 and the shell 1 can be enhanced, and the damage of the pin shafts 7 to the shell 1 can be avoided.

Wherein, oil storage chamber 13 has been seted up to the inside of screw block 3, and inlet port 14 has been seted up to one side of screw block 3, and oil outlet 15 has been seted up to the opposite side of screw block 3, can store lubricating oil through oil storage chamber 13 to lubricating oil enters into oil storage chamber 13 through inlet port 14, then through oil outlet 15 discharge lubricating oil, exhaust lubricating oil can lubricate between piston and the piston cylinder.

The piston assembly 4 comprises a fixing block 41, the bottom of the fixing block 41 is fixedly connected to the top of the thread block 3, the surface of the fixing block 41 is provided with two annular grooves 42, and the two annular grooves 42 are internally provided with piston bodies 43.

Wherein, ring groove 44 has been seted up to two annular grooves 42's inside, and two annular grooves 42's inside fixedly connected with restricts piece 45, and restricts the quantity of piece 45 and set up to a plurality ofly.

The piston body 43 comprises a rubber ring 431, the rubber ring 431 is sleeved inside the annular groove 42, an annular clamping block 432 is fixedly connected to the inner surface of the rubber ring 431, the annular clamping block 432 is clamped inside the annular clamping groove 44, an anti-slip pad 433 is fixedly connected to the inner surface of the annular clamping block 432, an anti-slip strip 434 is fixedly connected to the inner surface of the anti-slip pad 433, a sealing strip 435 is fixedly connected to the outer surface of the rubber ring 431, the rubber ring 431 is sleeved inside the annular groove 42, the piston body 43 can be fixed on the surface of the fixing block 41, the rubber ring 431 and the fixing block 41 are not prone to fall off through clamping between the annular clamping groove 44 and the annular clamping block 432, the stability between the rubber ring 431 and the fixing block 41 is improved, the annular clamping block 432 can be abutted tightly through arrangement of a limiting block 45, the annular clamping block 432 is not prone to be separated from the annular clamping groove 44, rotation between the rubber ring 431 and the annular groove 42 can be prevented through arrangement of the anti-slip pad 433 and the anti-slip strip 434, gaps between the rubber ring 431 and the annular groove 42 can be reduced through arrangement of the sealing strip 435, and gaps between the rubber ring 431 and the inner wall of the piston cylinder can be better using effect of the piston cylinder.

The working principle is as follows: the piston rod 9 penetrates through the bottom of the shell 1, the pin hole 10 penetrates through the through hole 6 and the pin hole 10, and then the pin shaft 7 is fixed through the nut 8, so that the pin shaft 7 is connected with the shell 1, the thread block 3 is connected with the shell 1 through connection between the thread block 3 and the threaded hole, so that the piston assembly 4 on the thread block 3 can be connected with the shell 1, the strength of the shell 1 can be increased through the arrangement of the reinforcing sleeve 11 and the reinforcing plate 12, the strength of the connection part between the pin shaft 7 and the shell 1 can be enhanced, and the damage of the pin shaft 7 to the shell 1 can be avoided;

the rubber ring 431 is sleeved inside the annular groove 42, so that the piston body 43 can be fixed on the surface of the fixed block 41, the annular clamping groove 44 is clamped with the annular clamping block 432, the rubber ring 431 and the fixed block 41 are not easy to fall off, the stability between the rubber ring 431 and the fixed block 41 is improved, the annular clamping block 432 can be tightly abutted through the arrangement of the limiting block 45, so that the annular clamping block 432 is not easy to separate from the annular clamping groove 44, the rotation between the rubber ring 431 and the annular groove 42 can be prevented through the arrangement of the anti-skid pad 433 and the anti-skid strip 434, the gap between the rubber ring 431 and the inner wall of the piston cylinder can be reduced through the arrangement of the sealing strip 435, and the using effect of the piston is better;

can store lubricating oil through oil storage chamber 13 to lubricating oil enters into oil storage chamber 13 through inlet port 14, then discharges lubricating oil through oil outlet 15, and discharged lubricating oil can lubricate between piston and the piston cylinder.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. A forged steel structural piston comprising a housing (1), characterized in that: thread groove (2) have been seted up at the top of casing (1), the inside threaded connection of thread groove (2) has thread block (3), the top of thread block (3) is provided with piston assembly (4), reserve groove (5) have been seted up to the both sides of casing (1), through-hole (6) are located the inside of reserve groove (5), two common threaded connection has round pin axle (7) between through-hole (6), one side threaded connection of round pin axle (7) has nut (8), the bottom of casing (1) is provided with piston rod (9), the top of piston rod (9) passes the bottom of casing (1) and extends to the inside of casing (1), pinhole (10) have been seted up on the surface of piston rod (9), round pin axle (7) are pegged graft in the inside of pinhole (10).

2. A forged steel structural piston as claimed in claim 1, wherein: the inside both sides fixedly connected with reinforcement sleeve (11) of casing (1), just reinforcement sleeve (11) are located one side of through-hole (6), the inner wall fixedly connected with reinforcing plate (12) of casing (1), just the quantity of reinforcing plate (12) sets up to a plurality ofly.

3. A forged steel structural piston as claimed in claim 1, wherein: an oil storage cavity (13) is formed in the thread block (3), an oil inlet hole (14) is formed in one side of the thread block (3), and an oil outlet hole (15) is formed in the other side of the thread block (3).

4. A forged steel structural piston as claimed in claim 1, wherein: the piston assembly (4) comprises a fixing block (41), the bottom of the fixing block (41) is fixedly connected to the top of the thread block (3), annular grooves (42) are formed in the surface of the fixing block (41), the number of the annular grooves (42) is two, and piston bodies (43) are arranged inside the two annular grooves (42).

5. A forged steel structural piston according to claim 4, wherein: annular clamping grooves (44) are formed in the two annular grooves (42), limiting blocks (45) are fixedly connected to the inner portions of the two annular grooves (42), and the number of the limiting blocks (45) is multiple.

6. A forged steel structural piston according to claim 5, wherein: the piston body (43) comprises a rubber ring (431), the rubber ring (431) is sleeved inside the annular groove (42), an annular clamping block (432) is fixedly connected to the inner surface of the rubber ring (431), the annular clamping block (432) is clamped inside the annular clamping groove (44), an anti-slip pad (433) is fixedly connected to the inner surface of the annular clamping block (432), an anti-slip strip (434) is fixedly connected to the inner surface of the anti-slip pad (433), and a sealing strip (435) is fixedly connected to the outer surface of the rubber ring (431).